Lecture 32: Steganography (hidden messages) - Richard Buckland UNSW

[jhamien920]

Oh. This is cool. Secret messages.

[marcelo85765]

Nice guy :D

[wolfricacc]

put in "Theory and Practice of Cryptography November, 28 2007" to youtube. There's a google lecture with EXACTLY the same content and in the order that is displayed here.. i wonder is this common order to talk about things in or did someone copy off someone

[ILiveThereforeIAM]

Very good job, from one instructor to another. You have class, and the ability to simply complicated subjects. Only one regret, wish I had you as an instructor. :)

[saftacatalinmihai]

How can we test if we are in a simulation?

[chelle1504]

does anyone know the date of when this lecture was? I want to reference in in my essay

[danielsinz]

I wish my teachers would be like this guy. It makes lessons interesting

[rogerak80]

I like how the smiley face game was not only about the finished drawing, but the way it was drew as well.

[sisudo21]

I can't believe I saw the whole thing, but it was just so interesting

[mechaguess]

OMG HE DOES LOOK LIKE JOHN GREEN!!!!!!!!

[DriesBultynck]

I wish i had class from you when i did my bachelor in the days. Super interesting stuff!

[XxAznDarknezZxX]

I'm interested in that last thing he said. The one with creating digital worlds with sentient life that become self-aware and etc. Is there a specific name for it and are there any good books regarding it?

[sabriath]

@XxAznDarknezZxX : the name is simply "simulation", the magnitude he speaks of is one that simulates space-time itself with all the forces of the universe "in a bottle" so-to-speak. There is no _real_ way to do that (because it would take the power and size of the universe to simulate a universe), you can do a miniature one, but the chances of sentience becomes close to nil (as even out universe is pretty small on our own chance). I'm not sure of any books directly

[XxAznDarknezZxX]

@sabriath

Can't you create an infant version of our universe and fit it within our universe, that way, we can fit it within our universe. They would follow the same path we do and therefore, they would never outgrow our own universe (if space is infinite). And at a certain point in time, they would then make an infant version of their own universe within their universe and so on and so forth.

[sabriath]

@XxAznDarknezZxX : As I stated, the chances of life in a universe smaller than our own becomes close to 0 (drake's equation works on the expanses of our universe, if moved to something smaller, the equation drops off). Recursion is even less likely due to information entropy. You can take out one of the universe "powers" (dimension, gravity, radiation, etc.) to make it simpler, but those creatures would have to reduce it again, and again (info entropy).

[codybfd]

great teacher!!

[MusicBySav]

this is a great video and thank you for the info. also thanks for the recommendations I'll try to find them at my library =]

[slipknotphan]

i really like the movie saw

[stellarconverter]

Wow, this guy is great. Going to start watching all of these.

[filosophy42]

where Can i find mOre infOrmation on the godeL eScHer bach book? I'm inTrigued

[headstrong440]

Great Video,i subscribed!

[belacobros]

Damn! Just when it was getting really good, it's over! Booo.

[Arindamification]

Good Video. : )

[chensam87]

thank you sooooooooooo much

[hillsoftware]

Are videos 31a and 31b meant to be flagged as private?

[romeo8627]

Shouldn't the book be "The Codebreaker" by David Khan.. And not "The Code Book"..??

I am confused..

[unswelearning]

Yes Kahn's brilliant book is "The Codebreakers" and is the best book on the history and principles of cryptography I've had the pleasure to read. The Code Book is another popular book on codes but i've not read it, quite a few of my students like it however. A book I can strong recommend is "Decrypted Secrets" by FL Bauer, and of course Applied Cryptography by Bruce Schneier is a brilliant introduction to the field since the second world war.

[romeo8627]

Thank you for the info. I had studied "Cryptography and Network Security: Principles and Practice, Second Edition. by William Stallings" in engineering and also went through few chapters of Applied Cryptography. Both of which I had liked a lot.

Thank you for the recommendations. I will get "The Codebreakers" first. Have a nice day!

[nicexe]

I am so jealous of this class... In my school they teach as really ancient stuff (like pascal)

I hope we'll learn in a more accelerated way @ uni

[kkkkkiiiiisssss]

Can you please come to london and teach my Forensic course, i've learnt more in this 30mins than i have in a year at my uni, thanks!

[amos1415]

This guy reminds me of John Green

[tabius000]

hes emo

[xzhome]

i like the class

[YourMexicanQueen]

Is a good idea to bring the class in here this in case of of the studens are in a hospital sick, etc, we could not be missing clases, good job !!

[Ak7kid]

i swear people like this get paid per comment and rating?

[seraphinapandora]

Awesome!

[scrip7ki77y]

Australia.. What exciting schools overthere, man. excellent! (*^-^)b

[4l83r7]

Excelent video... Thanks for the post!!!

[Orione]

What a cool teacher! Wish my uni teachers taught as enthusiastically as he does.

Cool content too.

[Reality9O]

Yeah! They're learning about steganography etc, all I'm being tought is advanced mathematics, thermodyanamics etc..all the boring crap in one!

Does anyone here by any chance know what program/line (idk the name) these guys are studiying in this uni.?

[8tripsaweek]

what degree are you doing? thermodynamics is interesting. if you dont like them why you take it. not having a go man just interested to know what you doing because i take those too

[Reality9O]

Marine Engineering.

And thermodynamics is one of the courses in it; I cant just choose to not take it.

[ManoC21]

@Orione hahaha me too :D

[agentx3]

this has been taking me about 2 hours to finish since i kept pausing

[STxza]

you are a tard

[jamesmontague1965]

yawn

[shag123456]

Wow this was great. I learned a lot before reading Godel Escher Bach. thanks for posting this up.

[Starcraftmazter]

Finally had time to watch this, since I was MIA during that lecture.

Absolutely brilliant!!!